newbie in IR (how to take sharp pic in IR?)

[kelchew]

hi everyone here, i am a newbie in IR photography,
i have a r72 filter for my 50mm 1.8 canon lens
i try using it bt my pic look not sharp at all, not too sure what wrong with it. hope someone can help,

this how i use the filter

set up tripod with the lens, took a pic of it with AF on
after that put in my filter (r72) turn AF off (using mf)
exp time around 120s (try 60s it abit dark)

after that the pic seem abit blur

can i know where did i go wrong?

sorry for the lousy english
thanks for helping

 

[eawtan]

Did u use a tripod ?

 

[allenleonhart]

Did u use a tripod ?

yes he did haha

now next question: did you remember to close your eyepiece? it will affect one. if still cannot, use liveview and manual focus from there.

also, what kind of blur is it? tree leaves blur is normal since u expose 2 minutes... floor vibrations etc will affect too.

 

[kelchew]

yap i did..
bt i forget to bring my remote, so bulb mode, using "finger pressing"
dont know is it becos of that my pic is blur...

 

[kelchew]

yes he did haha

now next question: did you remember to close your eyepiece? it will affect one. if still cannot, use liveview and manual focus from there.

also, what kind of blur is it? tree leaves blur is normal since u expose 2 minutes... floor vibrations etc will affect too.

"close the eyepiece" ??
i didnt do that
after the filter on using liveview i cant see anything on it as well
tree leaves is blur and and other item is abit blur as well
(ps i cant load the pic now" got to try it after i reach hm)

oh ya is it normal to do a 2min expo?
i think i read somewhere it around 10-30s
(1st try 30s bt all the pic under expo)
ytd try 60-120s
120s pic is better expo

 

[allenleonhart]

"close the eyepiece" ??
i didnt do that
after the filter on using liveview i cant see anything on it as well
tree leaves is blur and and other item is abit blur as well
(ps i cant load the pic now" got to try it after i reach hm)

oh ya is it normal to do a 2min expo?
i think i read somewhere it around 10-30s
(1st try 30s bt all the pic under expo)
ytd try 60-120s
120s pic is better expo

if you are using AF, afing with the eyepiece open can affect the focus.

i've done a few minutes worth of exposure before. its normal for leaves to blur.

 

[kelchew]

if you are using AF, afing with the eyepiece open can affect the focus.

i've done a few minutes worth of exposure before. its normal for leaves to blur.

i using mf when the filter is on
will go out and try again and see how.
thanks sir for helping
in love with IR now

 

[allenleonhart]

i using mf when the filter is on
will go out and try again and see how.
thanks sir for helping
in love with IR now

if MF, try understanding hyperfocal. it should help

 

[kelchew]

if MF, try understanding hyperfocal. it should help

okie will read up on that thanks..

 

[catchlights]

yap i did..
bt i forget to bring my remote, so bulb mode, using "finger pressing"
dont know is it becos of that my pic is blur...

that depends,
if shutter speed is one sec, and you are using finger to trigger shutter, most probably will.
if shutter speed is 30 sec, you are not leaving your finger there for 30 sec right?

next time use self timer if you forget to bring remote.

 

[kelchew]

that depends,
if shutter speed is one sec, and you are using finger to trigger shutter, most probably will.
if shutter speed is 30 sec, you are not leaving your finger there for 30 sec right?

next time use self timer if you forget to bring remote.

sorry self timer can use in blub mode? ( i mean can just press self timer and let it open?)
ytd what i do is really i press it for 120s (pls dont laugh at me now )
didnt know self timer can work...

 

[catchlights]

sorry self timer can use in blub mode? ( i mean can just press self timer and let it open?)
ytd what i do is really i press it for 120s (pls dont laugh at me now )
didnt know self timer can work...

My bad, 30s is the limit

you need to use remote if you want the shutter to open more the 30s,
and yes, it is not recommended to depress the shutter release for that long timing, it will cause camera shake.

 

[allenleonhart]

My bad, 30s is the limit

you need to use remote if you want the shutter to open more the 30s,
and yes, it is not recommended to depress the shutter release for that long timing, it will cause camera shake.

oh yea... i missed that. probably handshake if it was 120s...

 

[kelchew]

My bad, 30s is the limit

you need to use remote if you want the shutter to open more the 30s,
and yes, it is not recommended to depress the shutter release for that long timing, it will cause camera shake.

oh yea... i missed that. probably handshake if it was 120s...

thanks so much for the advice,
will try it out on my next off day( must remember to bring my remote along. (hope by than my another 77mm filter is here)
order from ebay (need about 20-25day dont know y so long)

 

[Adnix]

Welcome to the world of IR!

Pic blur can be due to many factors, to be certain, will need to trial a bit more to identify the root cause.

For your case, since you are exposing for 120s, I suspect could be due to camera shake caused by this long exposure like what many others have highlighted. It could also be due to focusing issues, eg. IR focus shift, but suggest that we try to first confirm whether it's due to the camera shake.

What ISO and f stop were you using? Was the sunlight strong?

Will be good if you can upload a sample pic with the EXIF data.

 

[kelchew]

Welcome to the world of IR!

Pic blur can be due to many factors, to be certain, will need to trial a bit more to identify the root cause.

For your case, since you are exposing for 120s, I suspect could be due to camera shake caused by this long exposure like what many others have highlighted. It could also be due to focusing issues, eg. IR focus shift, but suggest that we try to first confirm whether it's due to the camera shake.

What ISO and f stop were you using? Was the sunlight strong?

Will be good if you can upload a sample pic with the EXIF data.

i was shooting in f11 110s iso100
here the pic

Bedok Resv IR 02 by kelchew, on Flickr

 

[kelchew]

Bedok Resv IR 01 by kelchew, on Flickr
here another pic
both look abit blur too me

F11 120s iso 100

 

[Adnix]

The pic looks ok to me (from my small phone screen). Seems like its just the leaves moving due to the long exposure?

 

[allenleonhart]

cant pinpoint for me from the pictures...

so you have to slowly troubleshoot yourself a little here.

1: cover eyepiece
2: focus after 1
3: use a tripod + shutter release

then we see the image and see how from there?

 

[HighTone]

Welcome to IR,

guess you can get a shutter release 1st and a sturdy tripod to test out 1st.